Isogeometric symmetric FE-BE coupling method for acoustic-structural interaction
作者：
Highlights：
• A new NURBS-based isogeometric variational coupling approach is presented, and the symmetric coupling coefficient matrix is obtained.
• The convergence of symmetric direct coupling method is investigated and compared with the traditional coupling method.
• The proposed coupling method is generalized to the general case and can deal with the open boundary problem.
• The eigenfrequencies and modes of the structure submerged into fluid are studied.
摘要
•A new NURBS-based isogeometric variational coupling approach is presented, and the symmetric coupling coefficient matrix is obtained.•The convergence of symmetric direct coupling method is investigated and compared with the traditional coupling method.•The proposed coupling method is generalized to the general case and can deal with the open boundary problem.•The eigenfrequencies and modes of the structure submerged into fluid are studied.
论文关键词：Isogeometric analysis,Symmetric FE-BE coupling,ASI,Open boundaries
论文评审过程：Received 8 January 2020, Revised 24 September 2020, Accepted 18 October 2020, Available online 17 November 2020, Version of Record 17 November 2020.
论文官网地址：https://doi.org/10.1016/j.amc.2020.125758
